An alkaline powder addition device for xanthate production

Abstract

This utility model discloses an alkali powder adding device for xanthate production, comprising: a desktop, an mounting plate disposed above the desktop, spring support seats connected to the four corners of the inner wall of the bottom of the mounting plate, a hopper mounted on the inner wall of the mounting plate, and a controller mounted on one end of the outer wall of the top of the desktop. It also includes: limiting components mounted on both ends of the outer wall of the top of the desktop. A feed pipe is connected to the inner wall of the top of the hopper, and a pressure vacuum gauge is installed on the top of the hopper. A vacuum vent pipe and a first nitrogen vent pipe are respectively connected to both ends of the inner wall of the top of the hopper. This alkali powder adding device for xanthate production uses a vibrating motor to prevent alkali powder from clumping and clogging, ensuring uniform feeding; a nitrogen protection system to create a low-oxygen environment, reducing oxidation byproducts and improving safety; a weighing sensor to achieve high-precision measurement, ensuring reaction ratios; and limiting components to enhance equipment stability, thus improving overall feeding reliability and product purity.

Description

Technical Field

[0001] This utility model relates to the field of feeding technology in xanthate production, specifically to an alkaline powder adding device for xanthate production. Background Technology

[0002] Xanthate, as a core collector in sulfide ore flotation, is industrially produced primarily through a solid-liquid heterogeneous reaction between alkali metal hydroxides (such as NaOH / KOH) or carbonates (such as Na₂CO₃) and carbon disulfide (CS₂) in a kneader. However, the addition of alkali powder during xanthate production presents several challenges.

[0003] Poor weighing accuracy: Traditional alkali powder adding devices can have a measured error of ±5% when weighing alkali powder, but xanthate production requires the alkali powder molar ratio control error to be ≤±1%. Excessive metering deviation will increase the amount of trithiocarbonate by-product generated, significantly reducing product purity.

[0004] High safety risks: The explosion limits of the reactant CS2 are 1.3%-50%, and the existing open feeding method is prone to CS2 leakage. The escape of CS2 vapor not only poses a risk of poisoning to operators, but also increases the CS2 concentration in the workshop, creating an explosion hazard.

[0005] Uneven dispersion of alkali powder: Alkali powder is prone to clumping. Once clumped, the alkali powder cannot be evenly dispersed in the reaction system, which will delay the reaction process, cause incomplete reaction, and thus reduce the purity of the product.

[0006] The current problems in the alkali powder addition process in xanthate production seriously affect the production quality and safety of xanthate. There is an urgent need for a new alkali powder addition device to solve these problems and improve the efficiency and safety of xanthate production. Utility Model Content

[0007] The purpose of this invention is to provide an alkali powder addition device for xanthate production, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an alkali powder addition device for xanthate production, comprising: a tabletop, a mounting plate disposed above the tabletop, spring support seats connected to the four corners of the inner wall of the bottom of the mounting plate, a hopper mounted on the inner wall of the mounting plate, and a controller mounted on one end of the outer wall of the top of the tabletop; further comprising: limiting components mounted on both ends of the outer wall of the top of the tabletop; a feed pipe connected to the inner wall of the top of the hopper, and a pressure vacuum gauge installed on the top of the hopper; a vacuum vent pipe and a first nitrogen vent pipe respectively connected to both ends of the inner wall of the top of the hopper. Furthermore, a vacuum pumping assembly and a gas supply assembly are respectively installed on the outer walls of both sides of the silo. One end of the vacuum pumping assembly is connected to a vacuum vent pipe, and one end of the gas supply assembly is connected to a first nitrogen vent pipe. A vibration motor is installed on the outer wall of the silo, and a weighing sensor is installed on the outer wall of the silo. A screw feeder is connected to the inner wall of the bottom of the silo. The bottom of the screw feeder is connected to a discharge port, which is connected to the subsequent xanthate reactor. A second nitrogen vent pipe is connected to the inner wall of the top of the screw feeder, and the top of the second nitrogen vent pipe is connected to the gas supply assembly through a connecting pipe.

[0009] The limiting assembly includes a support plate, an electric push rod mounted on one outer wall of the support plate, and a bracket mounted on one end of the piston rod of the electric push rod.

[0010] Both ends of the mounting plate are provided with slots, and the slots are compatible with the card holder.

[0011] The vacuum assembly includes a fixed plate, a vacuum pump and a vacuum buffer tank mounted on the fixed plate, an extraction pipe connected to the vacuum pump and the vacuum buffer tank, and a dust filter mounted on the extraction pipe.

[0012] The gas supply assembly includes a connecting plate, a nitrogen tank mounted on the top of the connecting plate, and a gas delivery pipe connected to one end of the nitrogen tank.

[0013] The top outer wall of the desktop has an annular opening, and the bottom of the hopper passes through the annular opening.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model discloses an alkaline powder adding device for xanthate production. It uses a vibrating motor to prevent alkaline powder from clumping and clogging, ensuring uniform feeding; it uses a nitrogen protection system to create a low-oxygen environment, reducing oxidation by-products and improving safety; a weighing sensor to achieve high-precision measurement and ensure reaction ratio; and limiting components to enhance equipment stability, thereby improving the overall reliability of feeding and product purity. Attached Figure Description

[0016] Figure 1 This is an external structural view of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a structural diagram of the vacuum pumping assembly of this utility model;

[0019] Figure 4 This is a structural diagram of the gas supply component of this utility model.

[0020] In the diagram: 1. Desktop; 2. Mounting plate; 3. Spring support seat; 4. Hopper; 5. Controller; 6. Limiting assembly; 601. Support plate; 602. Electric push rod; 603. Card holder; 7. Feed pipe; 8. Pressure vacuum gauge; 9. Vacuum vent pipe; 10. First nitrogen vent pipe; 11. Vacuum assembly; 1101. Fixing plate; 1102. Vacuum pump; 1103. Vacuum buffer tank; 1104. Evacuation pipe; 1105. Dust filter; 12. Gas supply assembly; 1201. Connecting plate; 1202. Nitrogen tank; 1203. Gas delivery pipe; 13. Vibration motor; 14. Weighing sensor; 15. Screw feeder; 16. Discharge port; 17. Second nitrogen vent pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 This utility model provides an alkaline powder addition device for xanthate production, comprising: a tabletop 1, an mounting plate 2 disposed above the tabletop 1, spring support seats 3 connected to the four corners of the bottom inner wall of the mounting plate 2, a hopper 4 installed on the inner wall of the mounting plate 2, and a controller 5 installed on one end of the top outer wall of the tabletop 1. It also includes: limiting components 6 installed at both ends of the top outer wall of the tabletop 1; a feed pipe 7 connected to the top inner wall of the hopper 4; a pressure vacuum gauge 8 installed on the top of the hopper 4; a vacuum vent pipe 9 and a first nitrogen vent pipe 10 respectively connected to both ends of the top inner wall of the hopper 4; and two outer walls on both sides of the hopper 4 respectively. The device includes a vacuum pumping assembly 11 and a gas supply assembly 12. One end of the vacuum pumping assembly 11 is connected to a vacuum vent pipe 9, and one end of the gas supply assembly 12 is connected to a first nitrogen vent pipe 10. A vibration motor 13 is installed on the outer wall of the silo 4, and a weighing sensor 14 is installed on the outer wall of the silo 4. A screw feeder 15 is connected to the inner wall of the bottom of the silo 4. The bottom of the screw feeder 15 is connected to a discharge port 16, which is connected to the subsequent xanthate reactor. A second nitrogen vent pipe 17 is connected to the inner wall of the top of the screw feeder 15, and the top of the second nitrogen vent pipe 17 is connected to the gas supply assembly 12 through a connecting pipe.

[0023] It should be noted here that: Basic structure and material conveying: The core of the device is the silo 4. The alkali powder enters the silo through the feed pipe 7, and is conveyed to the discharge port 16 by the screw feeder 15 at the bottom, and finally enters the xanthate reactor to realize the directional transmission of the alkali powder.

[0024] Inert atmosphere protection: The vacuum assembly 11 extracts air from the hopper through the vacuum vent pipe 9, and works with the dust filter 1105 to prevent alkali powder leakage.

[0025] The gas supply component 12 fills the silo with nitrogen through the first nitrogen vent pipe 10 and the second nitrogen vent pipe 17 supplies nitrogen to the screw feeder, maintaining a low-oxygen environment throughout the process to prevent the alkali powder from reacting with air.

[0026] Auxiliary function coordination: Vibration motor 13 vibrates the outer wall of the hopper to prevent alkali powder from agglomerating and clogging;

[0027] Weighing sensor 14 monitors the quality of alkali powder in the silo in real time, and the data is transmitted to controller 5 to achieve accurate metering;

[0028] Pressure and vacuum gauge 8 monitors the pressure inside the chamber to ensure system safety;

[0029] The spring support 3 reduces the impact of vibration on the mounting plate 2, and the limiting component 6 fixes the position of the mounting plate to ensure stable operation of the equipment;

[0030] When it is necessary to maintain the equipment and ensure the stability of the hopper 4, the limiting component 6 can apply a limiting effect to the mounting plate 2: Since the hopper 4 and the mounting plate 2 are fixedly connected, after the mounting plate 2 is limited, the position of the hopper 4 is fixed, preventing it from shaking due to the elasticity of the spring support 3 or the residual vibration of the vibration motor 13.

[0031] In a preferred embodiment, the limiting component 6 includes a support plate 601, an electric push rod 602 mounted on one side of the outer wall of the support plate 601, and a bracket 603 mounted on one end of the piston rod of the electric push rod 602; both ends of the mounting plate 2 are provided with slots, and the slots are adapted to the bracket 603.

[0032] It should be noted that during maintenance, the electric push rod 602 drives the piston rod to extend and retract, causing the card holder 603 to move toward the mounting plate 2 and engage with the card slot. The support plate 601 provides fixed support, the electric push rod 602 outputs driving force, and the card holder 603 restricts the displacement of the mounting plate 2 through mechanical engagement.

[0033] In a preferred embodiment, the vacuum assembly 11 includes a fixed plate 1101, a vacuum pump 1102 and a vacuum buffer tank 1103 mounted on the fixed plate 1101, an extraction pipe 1104 connected to the vacuum pump 1102 and the vacuum buffer tank 1103, and a dust filter 1105 mounted on the extraction pipe 1104.

[0034] It should be noted here that: the vacuum pump 1102 extracts gas from the hopper through the extraction pipe 1104, and the vacuum buffer tank 1103 balances the extraction pressure to avoid damage to the equipment due to excessive instantaneous negative pressure.

[0035] Dust filter 1105 filters alkaline powder particles, preventing them from entering vacuum pump 1102 and causing wear, thus extending equipment life and reducing dust leakage and environmental pollution.

[0036] In a preferred embodiment, the gas supply assembly 12 includes a connecting plate 1201, a nitrogen tank 1202 mounted on the top of the connecting plate 1201, and a gas supply pipe 1203 connected to one end of the nitrogen tank 1202.

[0037] It should be noted here that: the nitrogen tank 1202 stores high-purity nitrogen, and the nitrogen is supplied to the silo through the gas supply pipe 1203 and the first nitrogen vent pipe 10 to replace the air in the silo and form an inert atmosphere;

[0038] The connecting plate 1201 fixes the position of the nitrogen tank 1202 to ensure a stable connection of the gas supply pipeline and prevent nitrogen leakage from affecting the protection effect.

[0039] In a preferred embodiment, the top outer wall of the tabletop 1 has an annular opening, and the bottom of the hopper 4 passes through the annular opening.

[0040] It should be noted here that the bottom of the hopper 4 passes through the annular opening, providing clearance for the screw feeder 15 and the discharge port 16, so that the material conveying path runs vertically through the tabletop, reducing the retention of alkali powder caused by pipe bends.

[0041] Working principle: The working principle of this device is based on the coordinated operation of its components to achieve precise, safe, and stable addition of alkali powder in xanthate production, as detailed below:

[0042] Basic material conveying process

[0043] Alkali powder enters the silo 4 through the feed pipe 7 for storage. The screw feeder 15 at the bottom of the silo quantitatively delivers the alkali powder to the discharge port 16, and finally enters the subsequent xanthate reactor to complete the directional transfer of raw materials.

[0044] Inert atmosphere protection mechanism

[0045] Vacuum assembly 11 starts: Vacuum pump 1102 draws air from the hopper through suction pipe 1104 and vacuum vent pipe 9. Vacuum buffer tank 1103 balances the suction pressure to avoid damage to the equipment due to instantaneous negative pressure. Dust filter 1105 filters alkaline powder particles to prevent them from entering the vacuum pump and causing wear, while also reducing dust leakage.

[0046] Nitrogen replacement: Nitrogen tank 1202 of gas supply component 12 fills the silo with nitrogen through gas supply pipe 1203 and first nitrogen vent pipe 10. Second nitrogen vent pipe 17 is connected to gas supply component to supply nitrogen to screw feeder. The whole process maintains a low oxygen environment to avoid alkaline powder reacting with air to generate by-products.

[0047] Assistive function coordination control

[0048] Anti-clogging and uniform feeding: Vibration motor 13 vibrates the outer wall of the hopper to break up alkali powder agglomeration and bridging, ensuring that alkali powder falls evenly to the screw feeder.

[0049] Precise metering: Weighing sensor 14 monitors the quality of alkali powder in the silo in real time, and transmits the data to controller 5. When the set value is reached, the feeding is automatically adjusted to ensure feeding accuracy.

[0050] Pressure monitoring: Pressure vacuum gauge 8 displays the pressure inside the chamber in real time, and triggers an alarm when the pressure exceeds the limit to ensure system safety.

[0051] Equipment stability assurance: Spring support seat 3 reduces the impact of vibration on mounting plate 2; during maintenance, the electric push rod 602 of limit component 6 drives the card holder 603 to engage with the card slot of mounting plate 2, fixing the position of mounting plate and preventing the hopper from shaking due to spring elasticity or residual vibration.

[0052] Structural adaptation optimization

[0053] The annular opening at the top of the desktop 1 provides clearance for the bottom of the hopper 4, the screw feeder 15, and the discharge port 16, allowing the material conveying path to be vertically unobstructed, reducing alkali powder retention caused by pipe bends, and improving conveying efficiency.

[0054] Through the above mechanisms, the device achieves the core objectives of "accurate metering, environmental safety, and stable operation" during the addition of alkali powder, meeting the stringent requirements for raw material addition in xanthate production.

[0055] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for adding alkali powder in xanthate production, comprising: Desktop (1), mounting plate (2) located above the desktop (1), spring support base (3) connected to the four corners of the bottom inner wall of the mounting plate (2), hopper (4) installed on the inner wall of the mounting plate (2), and controller (5) installed on one end of the top outer wall of the desktop (1); The feature is that it further includes: limiting components (6) installed at both ends of the top outer wall of the desktop (1); a feed pipe (7) is connected to the top inner wall of the hopper (4); a pressure vacuum gauge (8) is installed on the top of the hopper (4); a vacuum vent pipe (9) and a first nitrogen vent pipe (10) are respectively connected to both ends of the top inner wall of the hopper (4); a vacuum pumping component (11) and a gas supply component (12) are respectively installed on the outer walls of both sides of the hopper (4); one end of the vacuum pumping component (11) is connected to the vacuum vent pipe (9); and one end of the gas supply component (12) is connected to the vacuum vent pipe (9). A first nitrogen vent pipe (10) is connected, and a vibration motor (13) is installed on the outer wall of the silo (4). A weighing sensor (14) is installed on the outer wall of the silo (4), and a screw feeder (15) is connected to the bottom inner wall of the silo (4). The bottom of the screw feeder (15) is connected to a discharge port (16), and the discharge port (16) is connected to the subsequent xanthate reactor. The top inner wall of the screw feeder (15) is connected to a second nitrogen vent pipe (17), and the top of the second nitrogen vent pipe (17) is connected to the gas supply assembly (12) through a connecting pipe.

2. The alkali powder addition device for xanthate production according to claim 1, characterized in that: The limiting component (6) includes a support plate (601), an electric push rod (602) installed on one side of the outer wall of the support plate (601), and a bracket (603) installed on one end of the piston rod of the electric push rod (602).

3. The alkali powder addition device for xanthate production according to claim 2, characterized in that: The mounting plate (2) has slots at both ends, and the slots are compatible with the card holder (603).

4. The alkali powder adding device for xanthate production according to claim 1, characterized in that: The vacuum assembly (11) includes a fixed plate (1101), a vacuum pump (1102) and a vacuum buffer tank (1103) mounted on the fixed plate (1101), an extraction pipe (1104) connected to the vacuum pump (1102) and the vacuum buffer tank (1103), and a dust filter (1105) mounted on the extraction pipe (1104).

5. The alkali powder adding device for xanthate production according to claim 1, characterized in that: The gas supply assembly (12) includes a connecting plate (1201), a nitrogen tank (1202) installed on the top of the connecting plate (1201), and a gas supply pipe (1203) connected to one end of the nitrogen tank (1202).

6. The alkali powder adding device for xanthate production according to claim 1, characterized in that: The top outer wall of the desktop (1) has an annular opening, and the bottom of the hopper (4) passes through the annular opening.

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